2019 Trek Precaliber Boy's vs 2021 Giant XTC Jr 20
The One Size is the Giant XTC Jr 20 size closest to your 16" Trek Precaliber Boy's. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Giant XTC Jr 20
Compared with the Trek Precaliber Boy's in 16", the Giant XTC Jr 20 in One Size places the top of the head tube 51 mm higher and 48 mm further forward, relative to the bottom bracket. Its wheelbase is 167 mm longer, which can contribute to stability at speed.
- Frame stack
- +51 mm
- Higher front end
- Frame reach
- +48 mm
- Longer frame reach
- Wheelbase
- +167 mm
- Longer: steadier at speed
- Head angle
- −1.0°
- Slacker: calmer steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
We can't draw these frames yet. The Trek Precaliber Boy's numbers we have for size 16" are missing the seat angle and chainstay length. The numbers below still compare.
Geometry side by side
| Measurement | Trek Precaliber Boy's 16" | Giant XTC Jr 20 One Size | Difference |
|---|---|---|---|
| Reach | 275 | 323 | +48 mm |
| Stack | 342 | 393 | +51 mm |
| Head tube angle | 70.0° | 69.0° | −1.0° |
| Effective top tube | 400 | not listed | |
| Chainstay length | not listed | 375 | |
| Wheelbase | 722 | 889 | +167 mm |
| BB drop | 10 | not listed | |
| Standover | 389 | 524 | +135 mm |
| Seat tube length | 205 | 254 | +49 mm |
| Head tube length | 85 | 120 | +35 mm |
| Seat tube angle | not listed | 72.0° |
Differences are the Giant XTC Jr 20 minus the Trek Precaliber Boy's. Full charts: 2019 Trek Precaliber Boy's, 2021 Giant XTC Jr 20.
Where each sits in its class
Trek Precaliber Boy'sGiant XTC Jr 20
Each bike is ranked against the other kids bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Trek Precaliber Boy's12 Boy's | Giant XTC Jr 20XTC Jr 20 |
|---|---|---|
| Frame | Trek Dialed | not listed |
| Fork | Trek Dialed 12 | Giant HL |
| Chain | Trek HV410 | KMC HV500 |
| Handlebar | Trek Dialed 12 | Giant Sport |
| Saddle | Trek Dialed 12 | Giant Jr. Sports |
| Shifter | not listed | Shimano RevoShifter |
| Derailleur | not listed | Shimano Tourney |
| Wheelset | not listed | Giant Kids 20 |
| Tire | not listed | Giant Junior Sport |
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